sorry mate for lack of info
you install the box under your bonnet and it replaces your factory trans module
it wires in to your trans harness etc
this allows your auto to be fully manualised eg..if your in second it will stay in second etc and you shift it like a manual 1st,2nd,3rd,etc..works in conjunction with your ecu
mv sell them bout $290 new approx
im selling due to a manual conversion to my car cheers guys